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Showing posts from December, 2023

Seth Thomas #120

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 In for repair is a Seth Thomas number 120 mantle clock movement.  Only the movement was given.  There was no pendulum bob.  The work begins......... The image below shows the front plate before any work has been completed.  The mainspring power would be let down and wheels rotated to see how much wear is present in each wheel.  See below for a short video demonstrating the wear. Back plate Front plate partially disassembled.  Mainspring plate and wheels removed along with the front motion works and levers removed.  As you can see the worn pivots holes were marked.  There were 5 pivot holes on the front plate that needed rebuilding and 7 holes on the back.  12 in total. Back plate marked.  Click this image below to display a short video of the pivot hole wear This image shows the front plate removed and the location of all the wheels. The video below demonstrates a clock wheel after the pivot was polished and the pivot hole was rebu...

French Picture Clock

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  Set of three movements on board Front Plate Front Plate with partial lever removed Top plate removed Back plate Front plate showing the amount of dirty oil in pivot holes Broken Suspension  The suspension was a thread like material.  To regulate the clock there is a keyed arbor that wraps the thread materal around the arbor thus making the suspension loop longer or shorter. Damaged mainspring end.  The mainspring end was chiped and down at the bottom of the hole the material is cracked.  This must be rebuilt.  About one inch of the  mainspring was removed.  The end heated and tempered.  From there a hole was punched and filed to size. Repaired Mainspring End.  This image is not the finished product.  As you can see the hole was not centered.  This was corrected with a little more fileing. The barrel was repaired by a previous repairman.  This image shows the repair After all the repair work was completed.  The movem...